National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

84°F

29°C

Humidity 72%
Wind Speed S 12 mph
Barometer 29.98 in (1013.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 29 Jun 8:51 am CDT
Extended Forecast for

2 Miles E Maplewood MO

Extreme Heat Warning June 29, 09:51am until July 3, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 29, 09:51am until July 3, 10:00pm

    NOW until 10:00pm Fri

    Extreme Heat Warning

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 78. South wind 5 to 9 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Heat index values as high as 109. South wind 3 to 8 mph.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 77. South wind 3 to 6 mph.

    Low: 77 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. South wind 3 to 7 mph.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny and hot, with a high near 97. Heat index values as high as 109. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 78. South wind 5 to 9 mph.
Tuesday
Sunny and hot, with a high near 98. Heat index values as high as 109. South wind 3 to 8 mph.
Tuesday Night
Clear, with a low around 77. South wind 3 to 6 mph.
Wednesday
Sunny and hot, with a high near 98. South wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Mostly clear, with a low around 79.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 78.
Independence Day
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Maplewood MO
 38.6°N 90.29°W (Elev. 499 ft)
Last Update:
9:21 am CDT Jun 29, 2026
Forecast Valid:
9am CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation